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Huawei H12-821_V1.0-ENU Exam : HCIP-Datacom-Core Technology V1.0
- Exam Code: H12-821_V1.0-ENU
- Exam Name: HCIP-Datacom-Core Technology V1.0
- Updated: Sep 13, 2026
- Q & A: 1081 Questions and Answers
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Huawei H12-821_V1.0-ENU Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| BGP Core Knowledge | 17% | - BGP concepts and attributes - BGP route selection and control - BGP deployment and optimization |
| IPv6 Core Knowledge | 3% | - IPv6 addressing and header - IPv6 routing protocols |
| Network Security Basics | 9% | - ACL and packet filtering - Security defense technologies - AAA and access control |
| IS-IS Core Knowledge | 8% | - IS-IS protocol fundamentals - IS-IS routing and configuration |
| Routing Basics | 3% | |
| Switching Core Knowledge | 7% | - VLAN and trunking - Spanning Tree Protocol - Link aggregation |
| Multicast Basics | 9% | - Multicast principles - IGMP and PIM protocols |
| Network Service and Management | 2% | |
| Large-scale WLAN Networking Architecture | 6% | |
| Network Solutions | 2% | |
| Network Reliability Basics | 8% | - High availability design - BFD and fault detection - VRRP and redundancy |
| Routing and Traffic Control | 10% | - Routing policy and filtering - Traffic engineering and control |
| OSPF Core Knowledge | 16% | - OSPF principles and operation - OSPF configuration and troubleshooting - OSPF route calculation and selection |
Huawei HCIP-Datacom-Core Technology V1.0 Sample Questions:
Question #1
The LSDB output of a router R2 is shown in the figure. According to the analysis of the content in the figure, which of the following options is wrong?
- A. R2 is deployed in the backbone area, and R2 is an ABR
- B. Area boundary route aggregation exists in Area1
- C. ASBR exists in Area 2, and the Router ID of ASBR is 6.6.6.6
- D. There is no Stub area in the entire environment involved in the figure
Answer: C
Question #2
EVPN is a VPN technology that can only provide layer 2 network interconnection.
- A. FALSE
- B. TRUE
Answer: A
Question #3
OSPF is deployed in a campus to achieve network interoperability, and OSPF is also enabled on the GE0/0/2 interface of R3. Area1 is deployed as an NSSA area, and the addresses of each device are as shown in the figure.
An engineer configured a static route on R3 to access the loopback interface address of R4, and imported the static route into the OSPF process. At this time, in the Type5 LSA received by R1, the forwarding address (FA) is:
Answer:
10.1.34.4
Question #4
As shown in the figure, SW1 and SW2 have just run RSTP and are now performing spanning tree calculation.
So, which of the following descriptions about the port synchronization process in the P/A mechanism are correct? (Multiple choice)
- A. SW2 receives the RSTBPDU with the Proposal bit set from the root bridge, and starts to put all its ports into the synchronous state
- B. After the ports of SW2 are synchronized, all downstream ports enter the Discarding state
- C. When the downstream port of SW2 is synchronized, the status of the AP port remains unchanged
- D. While each port is synchronized, SW2 will return the response RST BPDU with the Agreement bit set
Answer: A,B,D
Question #5
Regarding the description of IGMP Snooping-working mechanism, which is the correct?
- A. If the host sends an IGMP leave message, the switch will add the host to the corresponding multicast table.
- B. The layer 2 switch establishes and maintains the PIM routing table on the layer 2 by continuously monitoring IGMP messages.
- C. When IGMP Snooping is not running, the multicast message will be broadcast on the second layer.
After running IGMP Snooping, the message will no longer be broadcast on the second layer, but will be multicast on the second layer. - D. If the host sends an IGMP host report message, the switch will delete the multicast entry corresponding to the hos.t
Answer: C
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